# Speed Trigonometry vs Touch Trigonometry

The clearest difference is in-app purchases: Speed Trigonometry at none against Touch Trigonometry's 1. Touch Trigonometry's advantage is iOS requirement (15.1 vs 18.5). On price, ads and device support there is nothing between them.

Both are free to download. Touch Trigonometry sells 1 one-off in-app purchase. Speed Trigonometry asks for nothing beyond the download.

## The numbers

| Metric | Speed Trigonometry | Touch Trigonometry |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (5 ratings)](https://appshunter.io/ios/app/speed-trigonometry/id6747187585/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 14 months | — |
| Monetization | Free | — |
| Size | 2 MB | 48 MB |
| Requires iOS | 18.5 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Nick Petroni](https://appshunter.io/developer/1597208168) | [Aisatsu LLC](https://appshunter.io/developer/1874553323) |

## What reviewers say

### Speed Trigonometry

[App page](https://appshunter.io/ios/app/speed-trigonometry/id6747187585)

This app helps students quickly memorize the unit circle. It quizzes users on sine, cosine, tangent, and inverse trigonometric values for key angles. Developed by students for students, it's ideal for precalculus learners.

**Highlights:** Unit circle memorization, Quizzes on trig values, Focus on key angles, Sine, cosine, tangent, inverse values, Student-developed

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Touch Trigonometry

[App page](https://appshunter.io/ios/app/touch-trigonometry/id6758712159)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Touch Trigonometry | $4.99 | one-time |


## Frequently asked questions

### Is Speed Trigonometry free?

Speed Trigonometry is free to download, with no in-app purchases.

### Is Touch Trigonometry free?

Touch Trigonometry is free to download, with in-app purchases available.

### Do Speed Trigonometry or Touch Trigonometry have ads?

Neither Speed Trigonometry nor Touch Trigonometry shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*